Lake Angelus, MI 48303 Frost Dates
48303, near Lake Angelus, MI: the frost window
Typically, the last spring freeze lands around 04/29, roughly 244 days out. Fall's first freeze usually shows up around 10/20, roughly 172 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Lake Angelus in Zone 6a (-10 to -5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Lake Angelus's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/29 isn't a guarantee
04/29 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/16 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/14 and only about 1 year in 10 sees frost after that.
Lake Angelus against the rest of the dataset
Lake Angelus's growing season runs about 172 days, ranking 28,489 of 40,283 US ZIP codes measured here, longest to shortest. Within MI, it ranks 274 of 1,153.
Learn more
Two guides worth reading on 48303: zone vs. frost date, on why Zone 6a and Lake Angelus's frost date answer different questions, and the frost range, on how to read the range around Lake Angelus's dates instead of trusting one.